12377839 has 4 divisors (see below), whose sum is σ = 12404160. Its totient is φ = 12351520.

The previous prime is 12377791. The next prime is 12377843. The reversal of 12377839 is 93877321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12377839 - 2¹⁵ = 12345071 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12377639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12442 + ... + 13399.

It is an arithmetic number, because the mean of its divisors is an integer number (3101040).

Almost surely, 2^12377839 is an apocalyptic number.

12377839 is a deficient number, since it is larger than the sum of its proper divisors (26321).

12377839 is an equidigital number, since it uses as much as digits as its factorization.

12377839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26320.

The product of its digits is 63504, while the sum is 40.

The square root of 12377839 is about 3518.2153146162. The cubic root of 12377839 is about 231.3209371855.

The spelling of 12377839 in words is "twelve million, three hundred seventy-seven thousand, eight hundred thirty-nine".